Double Star Calculator - Orbit

Orbital Elements for STT418
WDS: STT418 WDS ID/Discoverer
P: 709.151 Orbital period (years)
a: 1.6542 Semi-major axis (arcseconds)
i: 93.603 Inclination (degrees)
Ω: 111.511 Longitude of ascending node (degrees)
T: 1830.465 Epoch of periastron passage (year)
e: 0.67646 Eccentricity
ω: 91.16 Longitude of periastron (degrees)
Start-Year: 1670.42435 Year
End-Year: 2379.5756499999998 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STT418
Position: 205449.84+324223.2 Epoch-2000 right ascension and declination
WDS-ID: 20548+3242 WDS designation
Discoverer Code: STT418 Discover designation and components
ADS number: 14421 Aitken Double Star catalog
HD number: 199220 HD catalog number
Hipparcos number: 103232 Hipparcos catalog number
V1: 8.23 Magnitude of the primary
V2: 8.27 Magnitude of the secondary
Equinox: Equinox
Date: 2015 Date of last observation
Orbit grade: 4 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: Flags
Ephemerides: Ephemerides
Code: Izm2019 Reference

Double Star Orbit for STT418



WDS 6th Orbit including measures of STT418

-- Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements) --


Legend:
Green plus signs:Visual (micrometric) measures
Violet asterisks:Photographic measures
Blue symbols:Various interferometric techniques
Dot-dash line:Indicates the line of nodes

Ephemeris of STT418
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.907   282.79
--------------------------
1670.42    1.137   117.29
1671.42    1.141   117.24
1672.42    1.144   117.19
1673.42    1.147   117.15
1674.42    1.150   117.10
1675.42    1.154   117.05
1676.42    1.157   117.00
1677.42    1.160   116.95
1678.42    1.163   116.90
1679.42    1.166   116.86
1680.42    1.169   116.81
1681.42    1.172   116.76
1682.42    1.175   116.72
1683.42    1.178   116.67
1684.42    1.180   116.62
1685.42    1.183   116.58
1686.42    1.186   116.53
1687.42    1.188   116.49
1688.42    1.191   116.44
1689.42    1.193   116.40
1690.42    1.196   116.35
1691.42    1.198   116.31
1692.42    1.201   116.26
1693.42    1.203   116.22
1694.42    1.205   116.17
1695.42    1.207   116.13
1696.42    1.210   116.08
1697.42    1.212   116.04
1698.42    1.214   116.00
1699.42    1.216   115.95
1700.42    1.218   115.91
1701.42    1.220   115.87
1702.42    1.221   115.82
1703.42    1.223   115.78
1704.42    1.225   115.74
1705.42    1.226   115.69
1706.42    1.228   115.65
1707.42    1.229   115.61
1708.42    1.231   115.57
1709.42    1.232   115.52
1710.42    1.233   115.48
1711.42    1.235   115.44
1712.42    1.236   115.40
1713.42    1.237   115.35
1714.42    1.238   115.31
1715.42    1.239   115.27
1716.42    1.239   115.23
1717.42    1.240   115.19
1718.42    1.241   115.15
1719.42    1.241   115.10
1720.42    1.242   115.06
1721.42    1.242   115.02
1722.42    1.243   114.98
1723.42    1.243   114.94
1724.42    1.243   114.90
1725.42    1.243   114.85
1726.42    1.243   114.81
1727.42    1.243   114.77
1728.42    1.243   114.73
1729.42    1.243   114.69
1730.42    1.242   114.65
1731.42    1.242   114.60
1732.42    1.241   114.56
1733.42    1.240   114.52
1734.42    1.240   114.48
1735.42    1.239   114.44
1736.42    1.238   114.39
1737.42    1.237   114.35
1738.42    1.235   114.31
1739.42    1.234   114.27
1740.42    1.233   114.23
1741.42    1.231   114.18
1742.42    1.229   114.14
1743.42    1.228   114.10
1744.42    1.226   114.06
1745.42    1.224   114.01
1746.42    1.221   113.97
1747.42    1.219   113.93
1748.42    1.217   113.88
1749.42    1.214   113.84
1750.42    1.211   113.80
1751.42    1.208   113.75
1752.42    1.205   113.71
1753.42    1.202   113.66
1754.42    1.199   113.62
1755.42    1.195   113.57
1756.42    1.191   113.53
1757.42    1.188   113.48
1758.42    1.184   113.44
1759.42    1.179   113.39
1760.42    1.175   113.35
1761.42    1.170   113.30
1762.42    1.166   113.25
1763.42    1.161   113.20
1764.42    1.156   113.16
1765.42    1.150   113.11
1766.42    1.145   113.06
1767.42    1.139   113.01
1768.42    1.133   112.96
1769.42    1.127   112.91
1770.42    1.121   112.86
1771.42    1.114   112.81
1772.42    1.107   112.76
1773.42    1.100   112.70
1774.42    1.093   112.65
1775.42    1.085   112.59
1776.42    1.077   112.54
1777.42    1.069   112.48
1778.42    1.061   112.43
1779.42    1.052   112.37
1780.42    1.043   112.31
1781.42    1.034   112.25
1782.42    1.024   112.19
1783.42    1.014   112.13
1784.42    1.004   112.07
1785.42    0.993   112.00
1786.42    0.982   111.94
1787.42    0.971   111.87
1788.42    0.959   111.80
1789.42    0.947   111.73
1790.42    0.935   111.66
1791.42    0.922   111.58
1792.42    0.908   111.50
1793.42    0.895   111.42
1794.42    0.881   111.34
1795.42    0.866   111.26
1796.42    0.851   111.17
1797.42    0.835   111.08
1798.42    0.819   110.99
1799.42    0.803   110.89
1800.42    0.786   110.79
1801.42    0.768   110.68
1802.42    0.750   110.57
1803.42    0.731   110.45
1804.42    0.712   110.33
1805.42    0.692   110.20
1806.42    0.671   110.06
1807.42    0.650   109.91
1808.42    0.628   109.75
1809.42    0.606   109.59
1810.42    0.583   109.40
1811.42    0.559   109.21
1812.42    0.534   108.99
1813.42    0.509   108.75
1814.42    0.483   108.49
1815.42    0.457   108.20
1816.42    0.430   107.88
1817.42    0.402   107.50
1818.42    0.373   107.07
1819.42    0.344   106.58
1820.42    0.315   105.98
1821.42    0.284   105.26
1822.42    0.254   104.37
1823.42    0.223   103.24
1824.42    0.191   101.73
1825.42    0.159    99.62
1826.42    0.128    96.46
1827.42    0.096    91.23
1828.42    0.066    81.11
1829.42    0.041    56.90
1830.42    0.035     5.79
1831.42    0.054   329.60
1832.42    0.083   315.22
1833.42    0.114   308.42
1834.42    0.146   304.55
1835.42    0.177   302.06
1836.42    0.209   300.32
1837.42    0.240   299.04
1838.42    0.271   298.06
1839.42    0.302   297.27
1840.42    0.331   296.63
1841.42    0.361   296.09
1842.42    0.389   295.63
1843.42    0.417   295.24
1844.42    0.445   294.89
1845.42    0.471   294.58
1846.42    0.497   294.31
1847.42    0.522   294.06
1848.42    0.547   293.84
1849.42    0.571   293.63
1850.42    0.594   293.44
1851.42    0.616   293.27
1852.42    0.638   293.10
1853.42    0.659   292.95
1854.42    0.680   292.81
1855.42    0.700   292.67
1856.42    0.719   292.54
1857.42    0.738   292.42
1858.42    0.756   292.31
1859.42    0.773   292.20
1860.42    0.790   292.09
1861.42    0.806   291.99
1862.42    0.822   291.89
1863.42    0.837   291.80
1864.42    0.852   291.71
1865.42    0.867   291.62
1866.42    0.880   291.54
1867.42    0.894   291.46
1868.42    0.907   291.38
1869.42    0.919   291.30
1870.42    0.931   291.23
1871.42    0.943   291.15
1872.42    0.954   291.08
1873.42    0.965   291.01
1874.42    0.976   290.94
1875.42    0.986   290.88
1876.42    0.996   290.81
1877.42    1.005   290.75
1878.42    1.015   290.68
1879.42    1.023   290.62
1880.42    1.032   290.56
1881.42    1.040   290.50
1882.42    1.048   290.44
1883.42    1.056   290.38
1884.42    1.063   290.33
1885.42    1.070   290.27
1886.42    1.077   290.22
1887.42    1.084   290.16
1888.42    1.090   290.11
1889.42    1.096   290.05
1890.42    1.102   290.00
1891.42    1.108   289.95
1892.42    1.113   289.89
1893.42    1.119   289.84
1894.42    1.124   289.79
1895.42    1.129   289.74
1896.42    1.133   289.69
1897.42    1.138   289.64
1898.42    1.142   289.59
1899.42    1.146   289.54
1900.42    1.150   289.49
1901.42    1.153   289.44
1902.42    1.157   289.40
1903.42    1.160   289.35
1904.42    1.163   289.30
1905.42    1.166   289.25
1906.42    1.169   289.21
1907.42    1.172   289.16
1908.42    1.174   289.11
1909.42    1.177   289.07
1910.42    1.179   289.02
1911.42    1.181   288.97
1912.42    1.183   288.93
1913.42    1.185   288.88
1914.42    1.187   288.84
1915.42    1.188   288.79
1916.42    1.190   288.74
1917.42    1.191   288.70
1918.42    1.192   288.65
1919.42    1.193   288.61
1920.42    1.194   288.56
1921.42    1.195   288.52
1922.42    1.196   288.47
1923.42    1.196   288.43
1924.42    1.197   288.38
1925.42    1.197   288.34
1926.42    1.198   288.29
1927.42    1.198   288.25
1928.42    1.198   288.20
1929.42    1.198   288.16
1930.42    1.198   288.11
1931.42    1.198   288.07
1932.42    1.197   288.03
1933.42    1.197   287.98
1934.42    1.196   287.94
1935.42    1.196   287.89
1936.42    1.195   287.85
1937.42    1.194   287.80
1938.42    1.194   287.76
1939.42    1.193   287.71
1940.42    1.192   287.67
1941.42    1.191   287.62
1942.42    1.190   287.57
1943.42    1.188   287.53
1944.42    1.187   287.48
1945.42    1.186   287.44
1946.42    1.184   287.39
1947.42    1.183   287.35
1948.42    1.181   287.30
1949.42    1.180   287.25
1950.42    1.178   287.21
1951.42    1.176   287.16
1952.42    1.174   287.11
1953.42    1.172   287.07
1954.42    1.170   287.02
1955.42    1.168   286.97
1956.42    1.166   286.93
1957.42    1.164   286.88
1958.42    1.162   286.83
1959.42    1.159   286.78
1960.42    1.157   286.74
1961.42    1.155   286.69
1962.42    1.152   286.64
1963.42    1.150   286.59
1964.42    1.147   286.54
1965.42    1.145   286.49
1966.42    1.142   286.44
1967.42    1.139   286.39
1968.42    1.136   286.35
1969.42    1.134   286.30
1970.42    1.131   286.25
1971.42    1.128   286.19
1972.42    1.125   286.14
1973.42    1.122   286.09
1974.42    1.119   286.04
1975.42    1.116   285.99
1976.42    1.112   285.94
1977.42    1.109   285.89
1978.42    1.106   285.83
1979.42    1.103   285.78
1980.42    1.099   285.73
1981.42    1.096   285.67
1982.42    1.092   285.62
1983.42    1.089   285.57
1984.42    1.086   285.51
1985.42    1.082   285.46
1986.42    1.078   285.40
1987.42    1.075   285.35
1988.42    1.071   285.29
1989.42    1.067   285.24
1990.42    1.064   285.18
1991.42    1.060   285.12
1992.42    1.056   285.06
1993.42    1.052   285.01
1994.42    1.048   284.95
1995.42    1.044   284.89
1996.42    1.040   284.83
1997.42    1.036   284.77
1998.42    1.032   284.71
1999.42    1.028   284.65
2000.42    1.024   284.59
2001.42    1.020   284.53
2002.42    1.016   284.47
2003.42    1.012   284.40
2004.42    1.008   284.34
2005.42    1.003   284.28
2006.42    0.999   284.21
2007.42    0.995   284.15
2008.42    0.990   284.08
2009.42    0.986   284.02
2010.42    0.982   283.95
2011.42    0.977   283.88
2012.42    0.973   283.82
2013.42    0.968   283.75
2014.42    0.964   283.68
2015.42    0.959   283.61
2016.42    0.955   283.54
2017.42    0.950   283.47
2018.42    0.945   283.40
2019.42    0.941   283.32
2020.42    0.936   283.25
2021.42    0.931   283.18
2022.42    0.927   283.10
2023.42    0.922   283.03
2024.42    0.917   282.95
2025.42    0.912   282.87
2026.42    0.908   282.80
2027.42    0.903   282.72
2028.42    0.898   282.64
2029.42    0.893   282.56
2030.42    0.888   282.48
2031.42    0.883   282.40
2032.42    0.878   282.31
2033.42    0.873   282.23
2034.42    0.868   282.14
2035.42    0.863   282.06
2036.42    0.858   281.97
2037.42    0.853   281.88
2038.42    0.848   281.79
2039.42    0.843   281.70
2040.42    0.838   281.61
2041.42    0.833   281.52
2042.42    0.828   281.43
2043.42    0.823   281.33
2044.42    0.817   281.24
2045.42    0.812   281.14
2046.42    0.807   281.04
2047.42    0.802   280.94
2048.42    0.796   280.84
2049.42    0.791   280.74
2050.42    0.786   280.64
2051.42    0.781   280.53
2052.42    0.775   280.43
2053.42    0.770   280.32
2054.42    0.765   280.21
2055.42    0.759   280.10
2056.42    0.754   279.99
2057.42    0.749   279.87
2058.42    0.743   279.76
2059.42    0.738   279.64
2060.42    0.732   279.52
2061.42    0.727   279.40
2062.42    0.722   279.28
2063.42    0.716   279.15
2064.42    0.711   279.03
2065.42    0.705   278.90
2066.42    0.700   278.77
2067.42    0.694   278.64
2068.42    0.689   278.50
2069.42    0.683   278.36
2070.42    0.678   278.23
2071.42    0.672   278.08
2072.42    0.666   277.94
2073.42    0.661   277.80
2074.42    0.655   277.65
2075.42    0.650   277.50
2076.42    0.644   277.34
2077.42    0.639   277.19
2078.42    0.633   277.03
2079.42    0.627   276.86
2080.42    0.622   276.70
2081.42    0.616   276.53
2082.42    0.610   276.36
2083.42    0.605   276.19
2084.42    0.599   276.01
2085.42    0.593   275.83
2086.42    0.588   275.64
2087.42    0.582   275.46
2088.42    0.576   275.26
2089.42    0.571   275.07
2090.42    0.565   274.87
2091.42    0.559   274.67
2092.42    0.554   274.46
2093.42    0.548   274.25
2094.42    0.542   274.03
2095.42    0.537   273.81
2096.42    0.531   273.58
2097.42    0.525   273.35
2098.42    0.520   273.12
2099.42    0.514   272.88
2100.42    0.508   272.63
2101.42    0.502   272.38
2102.42    0.497   272.12
2103.42    0.491   271.86
2104.42    0.485   271.59
2105.42    0.480   271.31
2106.42    0.474   271.03
2107.42    0.468   270.74
2108.42    0.463   270.44
2109.42    0.457   270.14
2110.42    0.451   269.83
2111.42    0.445   269.51
2112.42    0.440   269.18
2113.42    0.434   268.84
2114.42    0.428   268.50
2115.42    0.423   268.14
2116.42    0.417   267.78
2117.42    0.412   267.40
2118.42    0.406   267.02
2119.42    0.400   266.62
2120.42    0.395   266.21
2121.42    0.389   265.80
2122.42    0.384   265.37
2123.42    0.378   264.92
2124.42    0.372   264.47
2125.42    0.367   263.99
2126.42    0.361   263.51
2127.42    0.356   263.01
2128.42    0.351   262.50
2129.42    0.345   261.96
2130.42    0.340   261.42
2131.42    0.334   260.85
2132.42    0.329   260.26
2133.42    0.324   259.66
2134.42    0.318   259.04
2135.42    0.313   258.39
2136.42    0.308   257.72
2137.42    0.303   257.03
2138.42    0.298   256.32
2139.42    0.292   255.58
2140.42    0.287   254.82
2141.42    0.282   254.02
2142.42    0.277   253.20
2143.42    0.272   252.35
2144.42    0.268   251.47
2145.42    0.263   250.56
2146.42    0.258   249.61
2147.42    0.253   248.63
2148.42    0.249   247.61
2149.42    0.244   246.55
2150.42    0.240   245.45
2151.42    0.236   244.32
2152.42    0.231   243.14
2153.42    0.227   241.91
2154.42    0.223   240.65
2155.42    0.219   239.33
2156.42    0.215   237.97
2157.42    0.212   236.56
2158.42    0.208   235.10
2159.42    0.205   233.60
2160.42    0.201   232.04
2161.42    0.198   230.43
2162.42    0.195   228.77
2163.42    0.193   227.06
2164.42    0.190   225.30
2165.42    0.187   223.50
2166.42    0.185   221.64
2167.42    0.183   219.75
2168.42    0.181   217.81
2169.42    0.180   215.84
2170.42    0.178   213.83
2171.42    0.177   211.79
2172.42    0.176   209.72
2173.42    0.175   207.63
2174.42    0.175   205.53
2175.42    0.174   203.42
2176.42    0.174   201.30
2177.42    0.174   199.18
2178.42    0.175   197.07
2179.42    0.175   194.97
2180.42    0.176   192.89
2181.42    0.177   190.83
2182.42    0.179   188.80
2183.42    0.180   186.80
2184.42    0.182   184.84
2185.42    0.184   182.92
2186.42    0.186   181.04
2187.42    0.188   179.20
2188.42    0.191   177.41
2189.42    0.194   175.67
2190.42    0.196   173.98
2191.42    0.199   172.34
2192.42    0.203   170.75
2193.42    0.206   169.21
2194.42    0.209   167.71
2195.42    0.213   166.27
2196.42    0.217   164.88
2197.42    0.221   163.54
2198.42    0.225   162.24
2199.42    0.229   160.99
2200.42    0.233   159.78
2201.42    0.237   158.62
2202.42    0.241   157.49
2203.42    0.246   156.41
2204.42    0.250   155.37
2205.42    0.255   154.36
2206.42    0.260   153.39
2207.42    0.265   152.45
2208.42    0.269   151.55
2209.42    0.274   150.68
2210.42    0.279   149.84
2211.42    0.284   149.03
2212.42    0.289   148.25
2213.42    0.294   147.49
2214.42    0.299   146.76
2215.42    0.304   146.06
2216.42    0.310   145.37
2217.42    0.315   144.71
2218.42    0.320   144.08
2219.42    0.326   143.46
2220.42    0.331   142.86
2221.42    0.336   142.28
2222.42    0.342   141.72
2223.42    0.347   141.18
2224.42    0.352   140.66
2225.42    0.358   140.15
2226.42    0.363   139.65
2227.42    0.369   139.17
2228.42    0.374   138.71
2229.42    0.380   138.26
2230.42    0.386   137.82
2231.42    0.391   137.39
2232.42    0.397   136.98
2233.42    0.402   136.57
2234.42    0.408   136.18
2235.42    0.414   135.80
2236.42    0.419   135.43
2237.42    0.425   135.07
2238.42    0.431   134.72
2239.42    0.436   134.38
2240.42    0.442   134.04
2241.42    0.448   133.72
2242.42    0.453   133.40
2243.42    0.459   133.09
2244.42    0.465   132.79
2245.42    0.470   132.50
2246.42    0.476   132.21
2247.42    0.482   131.93
2248.42    0.487   131.65
2249.42    0.493   131.39
2250.42    0.499   131.13
2251.42    0.505   130.87
2252.42    0.510   130.62
2253.42    0.516   130.38
2254.42    0.522   130.14
2255.42    0.527   129.90
2256.42    0.533   129.67
2257.42    0.539   129.45
2258.42    0.545   129.23
2259.42    0.550   129.02
2260.42    0.556   128.81
2261.42    0.562   128.60
2262.42    0.567   128.40
2263.42    0.573   128.20
2264.42    0.579   128.01
2265.42    0.585   127.82
2266.42    0.590   127.63
2267.42    0.596   127.45
2268.42    0.602   127.27
2269.42    0.607   127.09
2270.42    0.613   126.92
2271.42    0.619   126.75
2272.42    0.624   126.59
2273.42    0.630   126.42
2274.42    0.635   126.26
2275.42    0.641   126.10
2276.42    0.647   125.95
2277.42    0.652   125.80
2278.42    0.658   125.65
2279.42    0.664   125.50
2280.42    0.669   125.35
2281.42    0.675   125.21
2282.42    0.680   125.07
2283.42    0.686   124.93
2284.42    0.691   124.80
2285.42    0.697   124.66
2286.42    0.702   124.53
2287.42    0.708   124.40
2288.42    0.714   124.28
2289.42    0.719   124.15
2290.42    0.725   124.03
2291.42    0.730   123.91
2292.42    0.735   123.79
2293.42    0.741   123.67
2294.42    0.746   123.55
2295.42    0.752   123.44
2296.42    0.757   123.32
2297.42    0.763   123.21
2298.42    0.768   123.10
2299.42    0.773   123.00
2300.42    0.779   122.89
2301.42    0.784   122.78
2302.42    0.789   122.68
2303.42    0.795   122.58
2304.42    0.800   122.48
2305.42    0.805   122.38
2306.42    0.811   122.28
2307.42    0.816   122.18
2308.42    0.821   122.08
2309.42    0.826   121.99
2310.42    0.832   121.90
2311.42    0.837   121.80
2312.42    0.842   121.71
2313.42    0.847   121.62
2314.42    0.852   121.53
2315.42    0.857   121.45
2316.42    0.863   121.36
2317.42    0.868   121.27
2318.42    0.873   121.19
2319.42    0.878   121.10
2320.42    0.883   121.02
2321.42    0.888   120.94
2322.42    0.893   120.86
2323.42    0.898   120.78
2324.42    0.903   120.70
2325.42    0.908   120.62
2326.42    0.913   120.54
2327.42    0.918   120.47
2328.42    0.922   120.39
2329.42    0.927   120.31
2330.42    0.932   120.24
2331.42    0.937   120.17
2332.42    0.942   120.09
2333.42    0.947   120.02
2334.42    0.951   119.95
2335.42    0.956   119.88
2336.42    0.961   119.81
2337.42    0.965   119.74
2338.42    0.970   119.67
2339.42    0.975   119.60
2340.42    0.979   119.54
2341.42    0.984   119.47
2342.42    0.988   119.40
2343.42    0.993   119.34
2344.42    0.998   119.27
2345.42    1.002   119.21
2346.42    1.007   119.14
2347.42    1.011   119.08
2348.42    1.015   119.02
2349.42    1.020   118.96
2350.42    1.024   118.89
2351.42    1.028   118.83
2352.42    1.033   118.77
2353.42    1.037   118.71
2354.42    1.041   118.65
2355.42    1.045   118.59
2356.42    1.050   118.54
2357.42    1.054   118.48
2358.42    1.058   118.42
2359.42    1.062   118.36
2360.42    1.066   118.31
2361.42    1.070   118.25
2362.42    1.074   118.19
2363.42    1.078   118.14
2364.42    1.082   118.08
2365.42    1.086   118.03
2366.42    1.090   117.97
2367.42    1.094   117.92
2368.42    1.097   117.87
2369.42    1.101   117.81
2370.42    1.105   117.76
2371.42    1.109   117.71
2372.42    1.112   117.66
2373.42    1.116   117.60
2374.42    1.119   117.55
2375.42    1.123   117.50
2376.42    1.127   117.45
2377.42    1.130   117.40
2378.42    1.133   117.35
2379.42    1.137   117.30






Disclaimer
This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. Unless otherwise noted, all output generated by the Double Star Calculator including orbit diagrams, ephemerides, and analytical reports is licensed under CC BY 4.0.


Acknowledgements
The Double Star Calculator - Orbital Elements makes use of the Washington Double Star Sixth Catalog of Orbits of Visual Binary Stars, maintained at the U.S. Naval Observatory.


Report Information
Double Star Calculator: Version 1.2 ($Rev: 2397 $)
Report created: 2026-06-25 18:19:56



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